Question 4 (1 point) The figure shown below represents a control chart determined from attribute data. Given this chart and the plotted observations, the most appropriate action would be UCL Men Per Defective 03 02 01 00 ct 1 2 3 4 5 6 7 8 9 Sample take immediate action to identify potential causes of the variation. decrease the confidence interval for the control chart. do nothing because the process appears to be operating in control. increase the confidence interval for the control chart. Please use the following information to answer the following questions One of the first stages in any statistical process control program is to ascertain that the equipment utilized for an operation is inherently capable of producing within the design tolerance. For a particular lathe operation, run under controlled conditions so that no assignable causes of variation have been introduced, the outside diameter of each sampled part was measured, and the operator found that the mean is 7.422 centimeters and the standard deviation was 0.0075 centimeters (cm). Question 5 (1 point) What is the upper level of cpk statistics if the upper specification limit is 7.508 cm and the lower specification limit is 7.388 cm with k=6? 1.91 1.00 0.375 None of the above Question 6 (1 point) Based on the above question, what is the lower level of cpk statistics? 1.91 -0.76 0.76 None of the above Question 7 (1 point) According to the cpk statistics, the production process is under control True False